Lambda Function dynamodb

first decouple the variable like this,

app.post('/submit', function(req, res) {

    // console.log(req.body)
    satelize.satelize({
        ip: req.body.userIp
    }, function(err, payload) {
        // console.log(payload)
        var input = {
            "Created_on": new Date().toString(),
            "Name": req.body.name,
            "Email": req.body.email,
            "Company": req.body.company,
            "Subject": req.body.subject,
            "Message": req.body.message,
            "UserInfo": JSON.stringify(payload)
        };

        var params = {
            TableName: Leads_table_name,
            Item: input
        };

        docClient.put(params, function(err, data) {

            if (err) {
                console.log("users::save::error - " + JSON.stringify(err, null, 2));
            } else {
                console.log("users::save::success");
            }
        });
    })
    res.sendFile('public/response.html', {
        root: __dirname
    })